Gunawan, Bella Widya (2019) Optimisasi Safety Instrumented System Berdasarkan Dependability dan Lifecycle Cost pada LPG Fractionation Train. Other thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
LPG Fractionation Train merupakan salah satu fasilitas pengolahan gas untuk menghasilkan LPG. Di dalam masa produksi LPG, kegagalan pengoperasian sistem rawan terjadi. Safety Instrumented System (SIS) merupakan salah satu tahapan pada LOPA yang diimplementasikan sebagai Emergency Shutdown System (ESD) yang berfungsi untuk melindungi plant ketika terjadi kegagalan proses pengoperasian. Dalam tugas akhir ini membahas mengenai efek redundansi dengan optimisasi SIS berdasarkan dependability dan LCC pada LPG fractionation train. Optimisasi dilakukan dengan menggunakan Genetic Algorithm dengan variabel meliputi PFDavg, STR, dan LCC dengan variasi arsitektur dan jenis teknologi. Dari hasil perhitungan didapatkan nilai LCC aktual sebesar USD 7.423.294 dengan nilai SIL aktual adalah SIL 0. Sedangkan, untuk hasil optimisasi mendapatkan peningkatan nilai SIL yang semula SIL 0 menjadi SIL 2 dengan peningkatan nilai PFD menjadi 0,004723, STR sebesar 3,283 x10-5 dan LCC minimum sebesar USD 5.328.461. Sedangkan untuk vote arsitektur yang optimal dalam perancangan SIS ialah 1oo1 dengan teknologi smart transmitter untuk sensing element dan air operated untuk final element.
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LPG Fractionation Train is one of the gas processing facilities to produce LPG. In the production of LPG, failure to operate the vulnerable system occurred. Safety Instrumented System (SIS) is one of the stages of LOPA which is implemented as Emergency Shutdown System (ESD) which serves to protect the plant in case of failure of operation process. In this final task discusses the effects of redundancy with SIS optimization based on dependability and LCC in LPG fractionation train. Optimization is done using Genetic Algorithm with variables including PFDavg, STR, and LCC with variations in architecture and technology types. From the calculation result obtained the actual LCC value of USD 7,423,294 with the actual SIL value is SIL 0. Meanwhile, for the optimization results get an increase in the value of SIL, that was originally SIL 0 to SIL 2 with increased PFD value to 0.004723, STR of 3.283 X10-5 and minimum LCC of USD 5.328.461. As for the optimal architecture vote in the design of SIS is 1oo1 with smart transmitter technology for sensing elements and air operated for final elements.
| Item Type: | Thesis (Other) |
|---|---|
| Additional Information: | RSF 620.86 Gun o-1 2019 |
| Uncontrolled Keywords: | dependability, LCC, LPG fractionation train, PFDavg, safety instrumented system, STR. |
| Subjects: | T Technology > T Technology (General) > T55 Industrial Safety T Technology > TS Manufactures > TS167 Costs, Industrial |
| Divisions: | Faculty of Industrial Technology > Physics Engineering > 30201-(S1) Undergraduate Thesis |
| Depositing User: | Bella Widya Gunawan |
| Date Deposited: | 13 Nov 2024 01:39 |
| Last Modified: | 13 Nov 2024 01:39 |
| URI: | http://repository.its.ac.id/id/eprint/68524 |
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